9.2 Straw
If it is necessary to use the bottom chute, remove the
locking pin from underneath the end of the lower flap
so that the flap becomes operational again. If it
is necessary to spread the straw over any significant
distance from the right hand chute, raise the bottom
hinged plate to a horizontal position (4040 and 5050
models only). On 404M, 4040, 505M and 5050
models close the blanking disc at the front of the rotor
(see Fig. 5).
Fig. 5 Blanking Disc Adjustment
A large air flow into the front face of the rotor when
straw is being chopped will cause an excessive
amount of material to be blown out through the rear of
the drum. The feed rate may also be very low.
Raise the machine on the linkage until the PTO shaft
working geometry described under 'Fitting the
Machine onto the Tractor' is obtained. Open the flap
on the side(s) to which the shredded straw is to be
delivered and adjust the deflector(s) to give the
desired spread width. Never run the machine with no
flaps open, as a severe blockage and possible
damage is liable to occur.
Engage the PTO with the tractor engine on low idle
and increase the speed rapidly when the clutch has
engaged fully. Once the rotor is turning at 540 RPM,
operate the spool valve so that the drum starts rotating
and shredding is commenced.
When it is necessary to stop shredding part way
through a bale, always stop the drum rotation a few
seconds before the rotor, so that the shredded
material in the area around the outside of the rotor has
time to be blown clear of the machine. Failure to do
this may result in a blockage occurring when the
machine is restarted.
The length of chop will vary with the condition of the
bale. Fresh clean straw will tend to result in a longer
chop length than that which is old, slightly damp,
weathered or caked together in the bales. The power
consumption will also vary with the material being
shredded. In general, materials producing a short
chop length will require a relatively high power input.
he length of chop can be adjusted on 404M and 505M
models by changing the size of screen fitted. A
smaller hole diameter creates a finer chop and a
bigger hole diameter provides a longer chop.
IMPORTANT.
The machine is fitted with a slip clutch
on the rotor shaft. If this slips repeatedly, it should not
be tightened until the machine has been examined to
check that there is no fault or blockage. Refer to
'Maintenance' for the correct clutch setting.
9.3 Booster fan
Ensure the power supply cables for the oil cooler and
remote drum rotation kit are connected to the tractor.
If a flexible duct is fitted to the fan outlet ensure that it
is sensibly routed with no sharp turns or kinks. Always
attempt to create as straight a route as possible for the
ducting to improve material flow. Make sure that the
outlet end of the ducting is secure, pointing in the
correct direction and not obstructed. Any personnel in
the vicinity should be wearing ear defenders and
respirators or dust mask filtering. If a chute with an
adjustable deflector is fitted make sure that it is set at
the desired angle before operating the PTO.
Select 1000 PTO speed on the tractor. Start the PTO
and increase to operating speed. The fan will
automatically start and increase in speed in
accordance with PTO speed.
Once at 1000rpm PTO speed, material feed into the
booster fan can commence by rotating the drum. To
rotate the drum the handheld transmitter must be
firstly switched on. To do this there is a master switch
on the rear face of the transmitter that must be pushed
to the ‘on’ position. Next, the green button on the front
face can be depressed. At this point the central LED
on the transmitter will begin to flash green. Drum
rotation can be started and stopped by pressing the
white ‘rotation’ button. When drum rotation is
engaged a red LED at the left of the transmitter
illuminates. When bale processing is complete be
sure to switch the handheld transmitter off using the
red button so as to preserve battery life.
WARNING.
Never operate the transmitter whilst
in the immediate vicinity of the drum or whilst
other people are standing near the machine. Always
make sure the outlet chute/ducting is clear and that
the drum is within line of sight.
Drum rotation speed has a direct impact on material
throughput. The faster the drum rotates the greater
material throughput will be. It is advisable to begin
bale processing with drum rotation speed set low so
as to avoid chute blockages. Speed can then be
increased to the desired level once material flow has
been assessed.
The speed of drum rotation can be adjusted by means
of the flow control knob positioned above the oil
cooler. Screwing the knob fully in a clockwise
direction achieves minimum drum rotation speed
which is set at one third of a rotation per minute.
Unscrewing the knob fully in an anticlockwise direction
achieves maximum drum rotation speed which is
dependant on oil flow available from the tractor.
Adjust As
Necessary
7
